What is the sine of C if triangle ABC has b = 3, c = 7, and angle B = 15°?
2 answers:
Answer:
sin C = 0.6039111053
Step-by-step explanation:
The Law of sine can be used to solve this question. Sine formula for triangle can be represented using the picture of the triangle above.
a/sin A = b/sin B = c/sin C
b = 3
c = 7
B = 15°
Inputting the value in the equation
b/sin B = c/sin C
3/sin 15 = 7/sin C
cross multiply
3 sin C = 7 sin 15°
3 sin C = 7 × 0.2588190451
3 sin C = 1.811733316
sin C = 1.811733316/3
sin C = 0.6039111053
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Answer:
(c)
Step-by-step explanation:
Given
The attached graph
Required
Find h(3)
The formula to use in solving this is:
Substitute 3 for x
From the attached graph, the value od x = 3 points to the value of y = 1.
So, we have:
The angle 5x will be 50⁰. Then the correct option is D.
<h3>What is a parallelogram?</h3>It is a polygon with four sides. The total interior angle is 360 degrees. A parallelogram's opposite sides are parallel and equal.
The diagram is given below.
We know the sum of internal angles is 360 degrees.
Then we have
5x + 130 + 5x + 130 = 360
10x = 100
x = 10
Then the angle 5x will be
5x = 5(10)
5x = 50⁰
Then the correct option is D.
More about the parallelogram link is given below.
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